Title:
METHODS AND APPARATUS FOR DETECTING MISAPPLIED OPTICAL SENSORS
Document Type and Number:
WIPO Patent Application WO2008112576
Kind Code:
A9
Abstract:
Methods and apparatus are described for sensing misplacement of an optical sensor on a patient. A wavelength of light which is particularly subject to absorption by a physiological characteristic of interest is used to compare to a reference to determine if the sensor placement is appropriate, such as to generate accurate readings. In one example, the intensity of a wavelength of light which is subject to absorption by bulk tissue, but less subject to absorption by oxygen in the blood will be detected to evaluate the placement of the sensor.
Inventors:
BAKER JR CLARK R (US)
EARP BRIAN (US)
EARP BRIAN (US)
Application Number:
PCT/US2008/056293
Publication Date:
December 24, 2008
Filing Date:
March 07, 2008
Export Citation:
Assignee:
NELLCOR PURITAN BENNETT LLC (US)
BAKER JR CLARK R (US)
EARP BRIAN (US)
BAKER JR CLARK R (US)
EARP BRIAN (US)
International Classes:
A61B5/00
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